#include <stdio.h>
 
int main(void) {
	// your code goes here
    int a,b,temp;
    scanf("%d%d",&a,&b);
    printf("a=%d,b=%d\n",a,b);
    temp=a;
    a=b;
    b=temp;
    printf("a=%d,b=%d\n",a,b);
	return 0;
}